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"Error in PC Operating System" - what causes this error?

Created by: timoreardon at: 10/5/2011 4:00 PM (2 Replies)

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10/5/2011 4:00 PM	Rate (0)
timoreardon Regular Member Joined: 5/19/2010 Last visit: 11/6/2019 Posts: 21 Rating: (2)	Hi All, I have a PCS7 project (version v7.1 SP2) which has an error on the runtime alarm page "Error in PC Operating System". I've had a little look through the PCS7 manual and can only find a reference to it in the "Process Control System PCS 7 Basic Library V71" manual saying it is part of OB_BEGIN diagnostics and related to OB84 CPU hardware error. But that is all the information about this alarm and doesn't really highlight to me where I need to look to clear the alarm and what might have caused it. Anybody have an idea what this is? Thanks Tim

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10/5/2011 8:35 PM	Rate (0)
mark1507 Gold Expert Joined: 6/23/2008 Last visit: 12/8/2019 Posts: 976 Rating: (190)	Hi, do you have a PCS7 AS RTX ? Maybe in this FAQ (resp. the excel-file) is an explaination of this message. http://support.automation.siemens.com/WW/view/en/37696303 Regards, mark
	Last edited by: mark1507 at: 10/5/2011 8:39 PM "Expert" does not necessarily mean Siemens employee. Please cross-check your requirements always with official Siemens documentation. Also "Experts" are pleased about feedback. Please don't send support requests as PM.
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10/14/2011 5:19 PM	Rate (0)
timoreardon Regular Member Joined: 5/19/2010 Last visit: 11/6/2019 Posts: 21 Rating: (2)	Hi Mark, Thanks for the reply, I've not seen that excel file before but unfortunately I couldn't find the "Error in PC Operating System" fault in the file. I am using a PCS7 416 Box so similar to the RTX box you mentioned as in it have a CPU 416 PCI card in it. I think I've found a description on what causes the error and that is when the PC part of the Box is rebooted and the PLC part reports this error, but looking in the CPU diagnostics the error always clears itself after the PC has rebooted but the WinCC part of PCS7 is still reporting the alarm. Siemens tech support are making suggestions but I still can't clear it. The system is working fine but as I am the development stage, my customer will soon be asking why do I have a seemingly random error that I can't clear. I've found a way to disable the error in WinCC alarm logging, but not really the right way to go about it. Cheers Tim

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